KarlSt?hla,?,SusannaSternberg-Lewerinb,SandraBlomec,ArvoViltropd,Mary-LouisePenrithe,ErikaChenaisa
aDepartmentofDiseaseControlandepidemiology,NationalVeterinaryInstitute,Uppsala,Sweden
bDepartmentofBiomedicalSciencesandVeterinaryPublicHealth,SwedishUniversityofAgriculturalSciences,Uppsala,Sweden
cInstituteofDiagnosticVirology,Friedrich-Loeffler-Institut,InselRiems,Germany
dInstituteofVeterinaryMedicineandAnimalSciences,EstonianUniversityofLifeScience,Tartu,Estonia
eDepartmentofVeterinaryTropicalDiseases,UniversityofPretoria,Onderstepoort,SouthAfrica
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